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Finding the Fourth Proportional to 287,264.10, 429,875.55 and 250,230.90

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Solution

The fourth proportional to 287,264.10, 429,875.55 and 250,230.90 is: 374,457.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,264.10 : 429,875.55 = 250,230.90 : x
  2. Step 2: Convert to fraction form
    287,264.10/429,875.55 = 250,230.90/x
  3. Step 3: Cross multiply
    287,264.10x = 429,875.55 × 250,230.90
  4. Step 4: Simplify right side
    287,264.10x = 107,568,145,764.50
  5. Step 5: Solve for x
    x = 107,568,145,764.50/287,264.10
  6. Step 6: Final answer
    x = 374,457.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.